Having written about the concept of swipe by phone before, we picked up on the news that the Transport For London, Nokia and mobile operator O2 were planning to launch a phone that lets people swipe it to enter and leave the London Underground system.

Tube travelers are already using the Oyster card to swipe and go – and now they won't need to bang their wallet or purse against the sensors at the gates – but just their phone instead. The phone will also incorporate the Visa PayWave system to allow contactless payments. The Guardian reports:

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